... BPY AAA: Advanced technology, Assurable quality, Authentic reputation (impeller, stirrer, rabbler, beater, propeller, mixing blade, paddle, ... impellers have higher pumping-feeding power similar to pump and powerful shearing force and powerful dispersing force ... 419100156.71600160220M201214160220306040036168.421774201.2Remarks: The inner hole of impeller can be made according to the request of customers ...